CN102712988B - Metal coated steel strip - Google Patents
Metal coated steel strip Download PDFInfo
- Publication number
- CN102712988B CN102712988B CN201180005572.3A CN201180005572A CN102712988B CN 102712988 B CN102712988 B CN 102712988B CN 201180005572 A CN201180005572 A CN 201180005572A CN 102712988 B CN102712988 B CN 102712988B
- Authority
- CN
- China
- Prior art keywords
- alloy
- coating
- steel band
- band
- alloy layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 42
- 239000010959 steel Substances 0.000 title claims abstract description 42
- 229910052751 metal Inorganic materials 0.000 title description 15
- 239000002184 metal Substances 0.000 title description 15
- 238000000576 coating method Methods 0.000 claims abstract description 49
- 239000011248 coating agent Substances 0.000 claims abstract description 47
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 14
- 229910000676 Si alloy Inorganic materials 0.000 claims abstract description 11
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 57
- 239000000956 alloy Substances 0.000 claims description 57
- 229910007981 Si-Mg Inorganic materials 0.000 claims description 20
- 229910008316 Si—Mg Inorganic materials 0.000 claims description 20
- 229910052710 silicon Inorganic materials 0.000 claims description 13
- 229910052725 zinc Inorganic materials 0.000 claims description 11
- 239000012535 impurity Substances 0.000 claims description 3
- 238000007747 plating Methods 0.000 description 26
- 239000011777 magnesium Substances 0.000 description 19
- 238000005260 corrosion Methods 0.000 description 13
- 230000007797 corrosion Effects 0.000 description 13
- 239000011701 zinc Substances 0.000 description 13
- 229910001092 metal group alloy Inorganic materials 0.000 description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000003618 dip coating Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- 238000003916 acid precipitation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical group [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C18/00—Alloys based on zinc
- C22C18/04—Alloys based on zinc with aluminium as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/12—Aluminium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/40—Plates; Strips
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12736—Al-base component
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Coating With Molten Metal (AREA)
Abstract
A steel strip that has a coating of an Al-Zn-Si alloy that contains 0.3-10 wt.% Mg and 0.005-0.2 wt.% V.
Description
Technical field
The present invention relates to band, particularly steel band, this band has the corrosion-resistant metal alloys coating of the alloy containing aluminium, zinc and silicon, on this basis, hereinafter referred to " Al-Zn-Si alloy ".
Specifically but not exclusively relate to corrosion-resistant metal alloys coating, it contains aluminium, zinc, silicon and magnesium as the principal element in alloy layer, on this basis, hereinafter referred to " Al-Zn-Si-Mg alloy " in the present invention.This alloy layer can comprise as having a mind to the alloy addition added or other element existed as inevitable impurity.
Specifically but not exclusively relate to the steel band that plating has above-mentioned Al-Zn-Si-Mg alloy, and this steel band can cold-forming (such as roll forming) be end-use product, such as roofing product in the present invention.
Usually, Al-Zn-Si-Mg alloy of the present invention comprises element al that its weight percent is following scope, Zn, Si and Mg:
Al： 40%-60%
Zn： 30%-60%
Si： 0.3%-3%
Mg： 0.3%-10%。
More generally, Al-Zn-Si-Mg alloy of the present invention comprises element al that its weight percent is following scope, Zn, Si and Mg:
Al： 45%-60%
Zn： 35%-50%
Si： 1.2%-2.5%
Mg： 1.0%-3.0%。
According to end-use, such as polymer coating can be applied on the surface at one or two of metal deposition band.In this, but described metal deposition band self is sold as the finished product, or can also sell as the finished product through coating by applied coatings coating on one or both surfaces.
Specifically but not exclusively relate to steel band, this steel band plating has above-mentioned Al-Zn-Si-Mg alloy and optional plating has coating, and cold-forming afterwards (such as roll forming) is end-use product, such as building products (such as profile wall and roof boarding) in the present invention.
Specifically but not exclusively relate to cold-forming (such as roll forming) the end-use product (such as profile wall and roof boarding) comprising steel band, this steel band plating has above-mentioned Al-Zn-Si-Mg alloy and optional plating has coating in the present invention.
Background technology
Usually, on steel band, corrosion-resistant metal alloys coating is formed by hot dip coating method.
In common hot-dip plating metal solution and coating method, steel band, usually through one or more heat treatment furnace, enters afterwards and bathes through the molten metal alloy be contained in plating pot.
Usual use heating inductor makes metal alloy keep molten state in plating pot.Band separates heat treatment furnace by the outlet end being immersed in elongated outlet of still chute in bath or form of nozzle usually.In bath, steel band passes bath around one or more immersion deflector roll (sink rolls) and upwards passes from bath, at it through plating metal alloys during bath.
After leaving plating bath (coating bath), the band of plating metal alloy is by zinc coat thickness control workshop section, such as air knife or Qi Gua workshop section, and coating surface is subject to swiping the injection of gas there, controlling the thickness of coating.
Then, the steel band of metal-coated alloy carries out pressure cooling by cooling section.
Afterwards can optionally, the steel band through overcooled plating metal alloys passes in succession through skin rolling section (also referred to as temper rolling section) and tension leveling section carries out finishing.The steel band of finishing is batched at wind-up station place.
There is provided aluminum and zinc for anticorrosive in Al-Zn-Si alloy layer on steel band.
There is provided aluminium, zinc and magnesium for anticorrosive in Al-Zn-Si alloy layer on steel band.
In hot dip coating method, in above-mentioned two kinds of types of alloys, provide silicon to prevent from occurring excessive alloying (excessive alloying) between steel band and melting coating.Part silicon participates in quad alloy layer and is formed, but most of silicon during curing Precipitation become needle-like pure silicon granules.These needle-like silicon grains are also present in the interdendritic regions of coating.
Being widely used in a kind of corrosion resistant metal coating constituent in building products, especially profile wall and roof boarding many years in Australia and other place is the Al-Zn-Si alloy compositions comprising 55%Al.This profile plate is usually by making the metal alloy plating band cold-forming of band coating.Usually, by producing this profile plate by shaping for the strip-rolling of band coating.
Propose in patent documentation several years ago to add Mg in this known 55%Al-Zn-Si coating constituent, such as, with the United States Patent (USP) 6,635,359 of the name application of Nippon Steel Manufacturing Corp (Nippon Steel Corporation).But in Australian market, the Al-Zn-Si-Mg alloy layer on steel band there is no method and is purchased.
Explanation above should not be considered as admitting Australia or other local in common practise.
Summary of the invention
The applicant has been found that magnesium and vanadium enhance the particular aspects of the corrosive nature of 55%Al-Zn-Si alloyed metal coated steel strip.
Especially, the applicant has been found that, when containing Mg in 55%Al-Zn-Si coating constituent, Mg is by changing the corrosion product characteristic formed in ocean or acid rain environment, for product performance bring certain beneficial effect, such as, improve cut edge protection (cut-edge protection).The research work (comprising comprehensive accelerated corrosion test and atmospheric exposure test of being undertaken by the applicant) undertaken by the applicant, demonstrates this improvement to corrosive nature aspect.Adding for magnesium, to the metal coated steel with coating support edge root cut (edge undercutting) horizontal in improvement more obvious compared with the improvement in the exposed surface corrosion of metal plating under ocean environment.
The applicant also has been found that V brings certain beneficial effect to product performance when containing V in Al-Zn-Si alloy layer component.The applicant has been found that for various environment, and the mass loss level of exposed (uncoated) metal coated steel belt surface measured in outdoor exposure decreases average 33%.Be different from magnesium, exposed (uncoated) surface coating loss in improvement cut higher than the edge root at the metal-coated steel strip with coating support far away horizontal in improvement.
The present invention is sheet metal strip, particularly steel band, and described steel band has Al-Zn-Si alloy layer, and this coating contains the V of Mg and 0.005wt%-0.2wt% of 0.3wt%-10wt%, thus utilizes the above-mentioned complementary aspect of the corrosive nature of this coating.
More specifically, make the adding of Mg and V the exposed mass loss of band (bare mass loss) and cut through the edge root of the metal plating band of coating to be improved, reach than add separately more respectively each respective element obtainable higher level.
Described coating alloy can be Al-Zn-Si-Mg alloy, and this Al-Zn-Si-Mg alloy comprises element al that its weight percent is following scope, Zn, Si and Mg:
Al： 40%-60%
Zn： 30%-60%
Si： 0.3%-3%
Mg： 0.3%-10%。
Described coating alloy can be Al-Zn-Si-Mg alloy, and this Al-Zn-Si-Mg alloy comprises element al that its weight percent is following scope, Zn, Si and Mg:
Al： 45%-60%
Zn： 35%-50%
Si： 1.2%-2.5%
Mg： 1.0%-3.0%。
Described coating alloy can containing the V lower than 0.15wt%.
Described coating alloy can containing the V lower than 0.1wt%.
Described coating alloy can contain the V of at least 0.01wt%.
Described coating alloy can contain the V of at least 0.03wt%.
Described coating alloy can contain other elements.
Other elements described can be used as inevitable impurity and/or exist as the alloy addition of having a mind to add.
For example, described coating alloy can containing any one or multiple in Fe, Cr, Mn, Sr and Ca.
Described coating can be individual layer, and non-multilayer.
Described coating can be the coating not comprising non-equilibrium phase.
Described coating can be the coating not comprising amorphous phase.
Described can have coating support through metal lining band on alloy layer outside surface.
Meanwhile, the present invention is cold-forming (such as roll forming) the end-use product (such as profile wall and roof boarding) comprising steel band, and this steel band plating has above-mentioned coating alloy and optional plating has coating.
Accompanying drawing explanation
With reference to accompanying drawing, further explanation is exemplified to the present invention, wherein:
Fig. 1 is the schematic diagram of the embodiment producing the continuous processing line of Al-Zn-Si-Mg alloy plating steel band according to method of the present invention; And
Fig. 2 illustrates the anode Tafel graphic representation compared between each plating alloy, and described plating alloy comprises the embodiment of alloy layer as described in the present invention.
Embodiment
With reference to Fig. 1, in use, in uncoiling workshop section 1, cold-rolled steel strip is wound off volume, then by welding machine 2, the band of continuous unwound length is welded the band forming continuous length end to end.
Then this band is continued to pass through accumulator 3(accumulator), the band section of cleaning 4 and furnace module 5.Furnace module 5 comprises primary heater unit, preheating reduction furnace and reduction furnace.
By careful control of process variable, heat-treat in furnace module 5 to band, described process variable comprises: (i) the temperature curve in stove; (ii) the reducing gas concentration in stove; (iii) by the gas flow of stove; And the (iv) residence time of band in stove (i.e. linear velocity).
Control the process variable in furnace module 5, make remove iron oxide residues from strip surface and remove remaining oil and iron filings from strip surface.
Then make to pass downwardly through outlet converter nose through heat treated band, pass into and through the molten bath comprising Al-Zn-Si-Mg alloy be contained in plating pot 6, make band plating Al-Zn-Si-Mg alloy.Al-Zn-Si-Mg alloy is made to keep melting in plating pot by using heating inductor (not shown).In bath, band passes bath around immersion deflector roll and upwards passes from bath.When band is through bath, its two surface equal plating Al-Zn-Si-Mg alloys.
After leaving plating bath 6, band is perpendicular through Qi Gua workshop section (not shown), and the coating surface of band is subject to the injection of scraping gas at this place of workshop section, to control the thickness of coating.
Then, coated strip by cooling section 7 and be subject to force cooling.
Then, through the coated strip of cooling by rolling section 8, be used for the surface of finishing coated strip.
Described coated strip is batched afterwards at wind-up station 10 place.
As mentioned above, the present invention is based on the research work that the applicant carries out 55%Al-Zn-Si alloy layer known on steel band, described research work finds that magnesium and vanadium enhance the particular aspects of the corrosive nature of described coated steel strip.
Described research work is included in atmospheric exposure test and the accelerated corrosion test of one period of long period under acid and ocean environment.
Anode Tafel curve in Fig. 2 understands the result of the described research work of part.Described graphic representation demonstrates the current density (" J "-with A/cm of 3 kinds of alloy compositions
2for unit) logarithm with the changing conditions of electropotential (in units of lying prostrate).Described curve display goes out the result of the research work for following coating: the 55%Al-Zn-Si alloy (" AZ ") that (a) is known; (b) Al-Zn-Si-Mg alloy containing Ca (" AM (Ca) "); (c) the Al-Zn-Si-Mg alloy (" AM (V) ") containing V as described in an embodiment of the invention.
Curve alloy coating (a) of Fig. 2, the corrosive nature of (b) and (c) compare.Described curve and other result obtained by the applicant show:
A (), compared to other alloy layer, AM of the present invention (V) alloy layer has lower corrosion current (AM (V) improves 1.5-2 doubly relative to AM (Ca)) under given corrosion potential;
B (), compared to AM (Ca), AM of the present invention (V) alloy layer has higher corrosion potential (being respectively+0.03V and+0.11V);
C (), compared to AM (Ca), AM of the present invention (V) alloy layer has higher pitting potential (pitting potential) (being respectively+0.04V and+0.18V); And
D (), compared to AM (Ca), AM of the present invention (V) alloy layer has significantly lower oxidation current under anodic polarization (anodic polarisation); When-0.25V, for AM (V), described oxidation current is low about 20000 times.
These improvement in the anode dissolution resistance of alloy layer mean, when alloy layer of the present invention is exposed to erosion (salt, acid and dissolved oxygen), metallographic (metallurgical phase) will with speed corrosion slowly, and erosion pattern will extensively be changed, and localization is tended in not conference
With pitting corrosion pattern.These character will give end-use product the longer life-span, this is because red rust corrodes (red rust staining), metal plating bubbles (metal coating blistering) and the possibility of substrate perforation (substrate perforation) is less.
When not deviating from the spirit and scope of the present invention, various amendment can be done to the present invention as above.
Claims (8)
1. a steel band, described steel band has Al-Zn-Si alloy layer, and described Al-Zn-Si alloy layer comprises element al that its weight percent is following scope, Zn, Si, Mg and V:
2. steel band as claimed in claim 1, wherein, described coating alloy is Al-Zn-Si-Mg alloy, and described Al-Zn-Si-Mg alloy comprises element al that its weight percent is following scope, Zn, Si and Mg:
3. steel band as claimed in claim 1 or 2, wherein, described alloy layer contains the V lower than 0.15wt%.
4. steel band as claimed in claim 1 or 2, wherein, described alloy layer contains the V lower than 0.1wt%.
5. steel band as claimed in claim 1 or 2, wherein, described alloy layer contains the V of at least 0.03wt%.
6. steel band as claimed in claim 1 or 2, wherein, described alloy layer contains as inevitable impurity and/or other element as the alloy addition existence having a mind to add.
7. steel band as claimed in claim 1 or 2, wherein, described alloy layer is individual layer.
8. a cold-forming end-use product, described product comprises the steel band described in preceding any one claim.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2010900043 | 2010-01-06 | ||
| AU2010900043A AU2010900043A0 (en) | 2010-01-06 | Metal coated steel strip | |
| PCT/AU2011/000010 WO2011082450A1 (en) | 2010-01-06 | 2011-01-06 | Metal coated steel strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102712988A CN102712988A (en) | 2012-10-03 |
| CN102712988B true CN102712988B (en) | 2014-12-31 |
Family
ID=44305128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180005572.3A Active CN102712988B (en) | 2010-01-06 | 2011-01-06 | Metal coated steel strip |
Country Status (10)
| Country | Link |
|---|---|
| US (4) | US20130011693A1 (en) |
| EP (1) | EP2521801B1 (en) |
| JP (2) | JP6309192B2 (en) |
| KR (7) | KR20200103129A (en) |
| CN (1) | CN102712988B (en) |
| ES (1) | ES2753155T3 (en) |
| MY (1) | MY162981A (en) |
| NZ (1) | NZ600606A (en) |
| TW (1) | TWI519675B (en) |
| WO (1) | WO2011082450A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ562141A (en) * | 2005-04-05 | 2009-10-30 | Bluescope Steel Ltd | Metal-coated steel strip comprising a coating of an aluminium-zic-silicon alloy that contains magnesium |
| KR20200103129A (en) * | 2010-01-06 | 2020-09-01 | 블루스코프 스틸 리미티드 | Metal coated steel strip |
| CN103764865B (en) * | 2012-08-01 | 2016-08-17 | 蓝野钢铁有限公司 | Metal-coated steel strip |
| HUE051721T2 (en) | 2013-02-06 | 2021-03-29 | Arcelormittal | Method of treatment of a running ferrous alloy sheet and treatment line for its implementation |
| CN108913965B (en) * | 2018-07-31 | 2021-02-26 | 中研智能装备有限公司 | ZnAlTiSiB anticorrosive coating for steel structure and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1261614C (en) * | 2000-02-29 | 2006-06-28 | 新日本制铁株式会社 | Plated steel product having high resistance and excellent formability and method for production thereof |
| WO2008025066A1 (en) * | 2006-08-29 | 2008-03-06 | Bluescope Steel Limited | Metal-coated steel strip |
| WO2009055843A1 (en) * | 2007-10-29 | 2009-05-07 | Bluescope Steel Limited | Metal-coated steel strip |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4735867A (en) * | 1985-12-06 | 1988-04-05 | Kaiser Aluminum & Chemical Corporation | Corrosion resistant aluminum core alloy |
| DE4111410C2 (en) * | 1990-04-13 | 1998-02-05 | Centre Rech Metallurgique | Process for the continuous dip coating of steel strip |
| JPH06116748A (en) * | 1992-10-08 | 1994-04-26 | Sumitomo Metal Ind Ltd | Multilayer al alloy plated metallic material excellent in corrosion resistance |
| US6610423B2 (en) * | 2000-02-29 | 2003-08-26 | Nippon Steel Corporation | Plated steel product having high corrosion resistance and excellent formability and method for production thereof |
| WO2002061164A1 (en) * | 2001-01-31 | 2002-08-08 | Nkk Corporation | Surface treated steel plate and method for production thereof |
| JP3654521B2 (en) * | 2001-01-31 | 2005-06-02 | Ｊｆｅスチール株式会社 | Painted steel sheet excellent in workability and corrosion resistance of processed part and method for producing the same |
| JP2002241962A (en) * | 2001-02-13 | 2002-08-28 | Sumitomo Metal Ind Ltd | HOT DIP Zn-Al-Mg ALLOY PLATED STEEL SHEET AND PRODUCTION METHOD THEREFOR |
| JP2003277905A (en) * | 2002-03-19 | 2003-10-02 | Jfe Steel Kk | HOT DIP Al-Zn BASE ALLOY COATED STEEL SHEET EXCELLENT IN SURFACE APPEARANCE AND BENDING WORKABILITY AND ITS PRODUCING METHOD |
| JP2003306757A (en) * | 2002-04-18 | 2003-10-31 | Jfe Steel Kk | HOT DIP Al-Zn ALLOY-COATED STEEL SHEET AND METHOD OF PRODUCING THE SAME |
| US7048815B2 (en) * | 2002-11-08 | 2006-05-23 | Ues, Inc. | Method of making a high strength aluminum alloy composition |
| AU2007228054B2 (en) * | 2006-03-20 | 2011-03-10 | Nippon Steel Corporation | Highly corrosion-resistant hot dip galvanized steel stock |
| EP2250296B1 (en) * | 2008-03-13 | 2020-10-14 | Bluescope Steel Limited | Metal-coated steel strip and method of manufacturing thereof |
| KR20110060680A (en) * | 2009-11-30 | 2011-06-08 | 동부제철 주식회사 | Coating composition, and method for coating of steel using the same, and coating steel coated coating composition |
| KR20200103129A (en) * | 2010-01-06 | 2020-09-01 | 블루스코프 스틸 리미티드 | Metal coated steel strip |
-
2011
- 2011-01-06 KR KR1020207024380A patent/KR20200103129A/en not_active Application Discontinuation
- 2011-01-06 TW TW100100464A patent/TWI519675B/en active
- 2011-01-06 NZ NZ600606A patent/NZ600606A/en unknown
- 2011-01-06 KR KR1020127020617A patent/KR20120112756A/en active Application Filing
- 2011-01-06 KR KR1020197006338A patent/KR20190026057A/en active Application Filing
- 2011-01-06 CN CN201180005572.3A patent/CN102712988B/en active Active
- 2011-01-06 KR KR1020247026137A patent/KR20240123413A/en not_active Application Discontinuation
- 2011-01-06 US US13/520,643 patent/US20130011693A1/en not_active Abandoned
- 2011-01-06 WO PCT/AU2011/000010 patent/WO2011082450A1/en active Application Filing
- 2011-01-06 KR KR1020237011173A patent/KR20230048464A/en not_active Application Discontinuation
- 2011-01-06 KR KR1020187004856A patent/KR20180020325A/en active Application Filing
- 2011-01-06 KR KR1020217025464A patent/KR20210104914A/en not_active IP Right Cessation
- 2011-01-06 JP JP2012547410A patent/JP6309192B2/en active Active
- 2011-01-06 ES ES11731624T patent/ES2753155T3/en active Active
- 2011-01-06 MY MYPI2012002709A patent/MY162981A/en unknown
- 2011-01-06 EP EP11731624.0A patent/EP2521801B1/en active Active
-
2016
- 2016-06-02 JP JP2016111124A patent/JP2017008415A/en not_active Withdrawn
-
2019
- 2019-09-30 US US16/588,851 patent/US20200024717A1/en not_active Abandoned
-
2021
- 2021-08-04 US US17/394,248 patent/US20220025501A1/en not_active Abandoned
-
2023
- 2023-02-22 US US18/172,476 patent/US20230279534A1/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1261614C (en) * | 2000-02-29 | 2006-06-28 | 新日本制铁株式会社 | Plated steel product having high resistance and excellent formability and method for production thereof |
| WO2008025066A1 (en) * | 2006-08-29 | 2008-03-06 | Bluescope Steel Limited | Metal-coated steel strip |
| WO2009055843A1 (en) * | 2007-10-29 | 2009-05-07 | Bluescope Steel Limited | Metal-coated steel strip |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011082450A1 (en) | 2011-07-14 |
| JP6309192B2 (en) | 2018-04-11 |
| KR20190026057A (en) | 2019-03-12 |
| JP2017008415A (en) | 2017-01-12 |
| KR20210104914A (en) | 2021-08-25 |
| JP2013516549A (en) | 2013-05-13 |
| KR20120112756A (en) | 2012-10-11 |
| KR20240123413A (en) | 2024-08-13 |
| TWI519675B (en) | 2016-02-01 |
| US20130011693A1 (en) | 2013-01-10 |
| MY162981A (en) | 2017-07-31 |
| ES2753155T3 (en) | 2020-04-07 |
| EP2521801B1 (en) | 2019-10-09 |
| US20200024717A1 (en) | 2020-01-23 |
| US20230279534A1 (en) | 2023-09-07 |
| NZ600606A (en) | 2014-02-28 |
| AU2011204744A1 (en) | 2012-07-05 |
| TW201132797A (en) | 2011-10-01 |
| EP2521801A1 (en) | 2012-11-14 |
| CN102712988A (en) | 2012-10-03 |
| KR20180020325A (en) | 2018-02-27 |
| EP2521801A4 (en) | 2014-04-23 |
| KR20230048464A (en) | 2023-04-11 |
| US20220025501A1 (en) | 2022-01-27 |
| KR20200103129A (en) | 2020-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6368730B2 (en) | Molten Al-Zn-Mg-Si plated steel sheet and method for producing the same | |
| JP7244722B2 (en) | Zinc alloy plated steel material with excellent corrosion resistance after working and method for producing the same | |
| JPWO2020179147A1 (en) | Fused Al-Zn-Mg-Si-Sr plated steel sheet and its manufacturing method | |
| US20230279534A1 (en) | Metal coated steel strip | |
| CN110352261B (en) | Hot-dip Al-based steel sheet and method for producing same | |
| CN103975089B (en) | Al system plated steel material and manufacture method thereof | |
| JP6683258B2 (en) | Hot-dip Al-plated steel sheet and method for manufacturing hot-dip Al-plated steel sheet | |
| JP5200851B2 (en) | Zn-Al-Mg-based plated steel sheet and method for producing the same | |
| WO2007029322A1 (en) | HOT DIP Zn-Al BASED ALLOY PLATED STEEL PRODUCT EXCELLENT IN BENDING WORKABILITY AND METHOD FOR PRODUCTION THEREOF | |
| JP7549965B2 (en) | Hot-dip Al-Zn-Mg-Si plated steel sheet and its manufacturing method, and coated steel sheet and its manufacturing method | |
| WO2020179147A1 (en) | Hot-dip al-zn-mg-si-sr-plated steel sheet and method for manufacturing same | |
| JP7496876B2 (en) | Zn-Al-Mg hot-dip alloy plated steel with excellent corrosion resistance at processed parts and its manufacturing method | |
| JP2009120948A (en) | Alloy plated steel member having excellent corrosion resistance and weldability | |
| JP7464849B2 (en) | Plated steel product and method for manufacturing the same | |
| WO2018181392A1 (en) | HOT-DIPPED Al COATED STEEL SHEET AND METHOD FOR PRODUCING SAME | |
| JP6468492B2 (en) | Flux for pre-plating of steel and method for producing plated steel | |
| JP6065042B2 (en) | Molten Al-Zn-based plated steel sheet and method for producing the same | |
| AU2011204744B2 (en) | Metal coated steel strip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |